Home / 13,940.32-20,910.34-3,551.96

Finding the Fourth Proportional to 13,940.32, 20,910.34 and 3,551.96

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Solution

The fourth proportional to 13,940.32, 20,910.34 and 3,551.96 is: 5,327.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,940.32 : 20,910.34 = 3,551.96 : x
  2. Step 2: Convert to fraction form
    13,940.32/20,910.34 = 3,551.96/x
  3. Step 3: Cross multiply
    13,940.32x = 20,910.34 × 3,551.96
  4. Step 4: Simplify right side
    13,940.32x = 74,272,691.27
  5. Step 5: Solve for x
    x = 74,272,691.27/13,940.32
  6. Step 6: Final answer
    x = 5,327.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.